fix: mobile unawaited_futures lint (#21661)

* chore: add unawaited_futures lint as warning

# Conflicts:
#	mobile/analysis_options.yaml

* remove unused dcm lints

They will be added back later on a case by case basis

* fix warning

# Conflicts:
#	mobile/lib/presentation/pages/drift_remote_album.page.dart

* auto gen file

* review changes

* conflict resolution

---------

Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>

mobile/lib/domain/services/background_worker.service.dart

@@ -114,10 +114,10 @@ class BackgroundWorkerBgService extends BackgroundWorkerFlutterApi {
       configureFileDownloaderNotifications();
 
       // Notify the host that the background worker service has been initialized and is ready to use
-      _backgroundHostApi.onInitialized();
+      unawaited(_backgroundHostApi.onInitialized());
     } catch (error, stack) {
       _logger.severe("Failed to initialize background worker", error, stack);
-      _backgroundHostApi.close();
+      unawaited(_backgroundHostApi.close());
     }
   }